肥婆老熟妇精品视频在线-就去吻亚洲精品日韩都没-女生抠那里小视频-翘臀后插手机自拍

Mast cells （MCs） are tissue effector cells that participate in several physiologic and pathologic processes such as innate immunity, immunomodulation, allergy, autoimmunity, and neuroinflammation. Upon activation, MCs release preformed molecules stored in secretory granules, newly synthetized mediators, and several cytokines. Tryptase is the major neutral protease present in mast cells and is secreted upon the coupled activation-degranulation response of this cell type. May play a role in innate immunity.